Use rvm-capistrano gem

Gemfile

@@ -31,6 +31,7 @@ end
 group :development do
   gem 'ruby-debug19', :require => false
   gem 'capistrano'
+  gem 'rvm-capistrano'
 end
 
 group :test, :development do

Gemfile.lock

@@ -231,6 +231,8 @@ GEM
     ruby_core_source (0.1.4)
       archive-tar-minitar (>= 0.5.2)
     rubyzip (0.9.5)
+    rvm-capistrano (1.1.0)
+      capistrano (>= 2.0.0)
     sass (3.1.15)
     sass-rails (3.2.4)
       railties (~> 3.2.0)
@@ -312,6 +314,7 @@ DEPENDENCIES
   redcarpet
   rspec-rails
   ruby-debug19
+  rvm-capistrano
   sass-rails
   sidekiq
   simple_form

config/deploy.rb

@@ -1,4 +1,3 @@
-$:.unshift(File.expand_path('./lib', ENV['rvm_path']))
 require "rvm/capistrano"
 require 'bundler/capistrano'
 require 'capistrano_colors'
@@ -24,6 +23,8 @@ set :use_sudo, false
 set :deploy_to, "~/app"
 set :keep_releases, 3
 
+set :rvm_type, :system
+
 namespace :deploy do
   task :start do ; end
   task :stop do ; end